Based on the pattern and other words that aren't capitalized like "vision" in "apple vision OS", I would guess it's as simple as "author used speech to text and

Based on the pattern and other words that aren't capitalized like "vision" in "apple vision OS", I would guess it's as simple as "author used speech to text and apple is a word that is common in the English language and isn't usually a proper noun so isn't capitalized automatically."